Who is this for?

People counting carbohydrate

If you use tinned tomatoes in home-cooked meals, the amount of carbohydrate in your portion matters more than the sugars figure alone. Diabetes UK and Leeds Teaching Hospitals NHS Trust advise using total carbohydrate when counting it.

Shoppers comparing plain and reduced-sugar tins

A sugars figure on a tomato tin does not, by itself, mean the product has added sugar or tell you its total carbohydrate. Compare the nutrition panel and ingredients before deciding whether a different tin serves your meal plan.

Home cooks also checking salt

If tinned tomatoes are a regular sauce or stew ingredient, compare salt per 100g as well as carbohydrate. Individual chopped, finely chopped and whole-tomato products can have different figures.

What should you check on the tin?

Start with the carbohydrate in the amount your recipe uses, then check the ingredients, salt and tomato format.

Priority What to check Your needs
Total carbohydrate Find carbohydrate per 100g. Multiply it by the amount of tomatoes you will use, allowing for how many portions the recipe makes; do not use ‘of which sugars’ in its place when counting carbohydrate. I want to account for the tomatoes in my portion, not assume a whole tin is one serving.
Sugars and ingredients Read ‘of which sugars’ alongside total carbohydrate, then check whether the ingredients list includes anything beyond the tomatoes and their packing liquid. Compare the exact variants you are considering. A sugars figure need not rule out a tomato ingredient for me, but I want to know what has been added to this particular tin.
Salt Compare salt per 100g on the same basis across tins, and consider other ingredients going into the dish. ASDA Groceries lists 0.30g per 100g for Mutti finely chopped tomatoes and 0.01g per 100g for its listed Mutti whole peeled tomatoes. If salt matters in my cooking, I want to check the tin rather than assume plain-looking tomato products have identical figures.
Format and pack Choose chopped or finely chopped tomatoes for the texture your recipe needs, or whole peeled tomatoes if you plan to crush or cook them down. Check the current pack’s nutrition and storage instructions. For a quick sauce I may prefer a finer texture; for another dish I may want whole tomatoes and control how much I break them up.

Common label-reading mistakes

  • Choosing by ‘of which sugars’ alone

    The sugars figure is part of, not a replacement for, total carbohydrate. Leeds Teaching Hospitals NHS Trust advises using total carbohydrate on the label when counting carbohydrate.

    Compare carbohydrate per 100g and work out the amount contributed by the tomatoes in your portion. Use the sugars line as additional information.

  • Assuming similar tins contain the same salt

    ASDA Groceries lists 0.30g salt per 100g for Mutti finely chopped tomatoes and 0.01g per 100g for its Mutti whole peeled tomatoes listing. A similar carbohydrate figure does not establish a similar salt figure.

    Read salt per 100g on the exact product, particularly when the rest of your recipe also contains salty ingredients.

  • Treating ‘naturally sweet’ as a meal-planning answer

    A taste description does not tell you the carbohydrate in your serving or account for the other foods in a meal. Diabetes UK distinguishes sugars naturally present in whole vegetables from free sugars, while advising attention to total carbohydrate when planning intake.

    Use the ingredient list and nutrition panel, then consider the portion and the rest of the meal rather than relying on a phrase on the pack.

  • Using an old listing instead of the current pack

    Ingredients and nutrition information can change. ASDA Groceries and M&S both advise shoppers to check product labels for current information.

    Check the tin you buy before using its figures for a recipe or carbohydrate calculation.

Brand and product-line references

These figures describe the named products, not every tomato tin made by each brand; compare the current label of the variant you choose.

Napolina

Napolina offers chopped tomatoes in several pack sizes for recipes needing a chunky tomato base.

  • Napolina lists 3.6g carbohydrate, 3.6g sugars and 0.10g salt per 100g for its chopped tomatoes.
  • Do not carry those figures over to a flavoured or otherwise different Napolina variant; check its own label.

Mutti

Mutti’s finely chopped Polpa and whole peeled tomatoes offer different starting textures for cooking.

  • ASDA Groceries lists 3.9g carbohydrate, 2.8g sugars and 0.30g salt per 100g for Mutti finely chopped tomatoes; its listed whole peeled tomatoes have 3.6g carbohydrate, 2.9g sugars and 0.01g salt per 100g.
  • Neither texture nor the sugars figure alone predicts the other values. Compare the product and pack you intend to use.

ASDA

ASDA lists standard and Just Essentials chopped tomatoes in 400g tins.

  • ASDA Groceries lists 3.8g carbohydrate, 3.8g sugars and 0.01g salt per 100g for both of these named chopped-tomato products.
  • ASDA advises checking the physical label, as product information may change.

M&S

M&S offers a 400g organic Italian chopped-tomato product as one of its tinned tomato options.

  • Marks & Spencer lists 3.7g carbohydrate, 3.4g sugars and 0.03g salt per 100g for its Organic Italian Chopped Tomatoes.
  • M&S describes its tinned tomatoes as naturally sweet, but that description does not establish how a portion fits an individual meal plan. Read the current pack label.

Tesco

Tesco Groceries lists own-label chopped tomatoes alongside Napolina and Mutti products in its chopped-tomato category.

  • The category offers own-label and named-brand formats to compare when shopping.
  • Check the nutrition panel and ingredients for the particular Tesco tin rather than applying another brand’s figures to it.

Tinned tomato options on Joybuy

These chopped, finely chopped and peeled tomato options offer different formats and pack sizes for tomato-based recipes. Use each current tin’s label to compare total carbohydrate, sugars and salt for the amount you plan to serve.

Napolina Chopped Tomatoes, 6 x 400g

Napolina Chopped Tomatoes, 6 x 400g

Six 400g tins provide a chopped-tomato base for recipes. Check the current tin’s total carbohydrate per 100g and calculate the amount used in your portion.

View on Joybuy
Laila Canned Chopped Tomatoes, 12 x 400g

Laila Canned Chopped Tomatoes, 12 x 400g

This pack contains twelve 400g tins of chopped tomatoes. Compare the current label’s carbohydrate, sugars, salt and ingredients before using its figures in a meal calculation.

View on Joybuy
Napolina Chopped Tomatoes, 4 x 400g

Napolina Chopped Tomatoes, 4 x 400g

This four-tin pack offers a chopped format in 400g tins. Use the nutrition information on the current pack and the amount added to your recipe when calculating carbohydrate per portion.

View on Joybuy
Mutti Finely Chopped Tomatoes, 4 x 400g

Mutti Finely Chopped Tomatoes, 4 x 400g

The finely chopped format suits a recipe calling for a less chunky tomato base. Compare both total carbohydrate and salt on the current 400g tin rather than choosing by its sugars figure alone.

View on Joybuy
Mutti Peeled Tomatoes, 400g

Mutti Peeled Tomatoes, 400g

Choose the peeled-tomato format if you want to break up the tomatoes yourself for a sauce or stew. Check the current tin’s carbohydrate and salt per 100g, then use the amount in your portion for meal planning.

View on Joybuy

Questions about choosing and using tinned tomatoes

Do I need reduced-sugar tinned tomatoes when planning a meal for diabetes?

Not necessarily. Diabetes UK and Leeds Teaching Hospitals NHS Trust advise using total carbohydrate when counting carbohydrate, rather than relying on ‘of which sugars’. Calculate the tomatoes in the portion you will eat and consider the other carbohydrate-containing foods in the meal.

Which figures should I compare on a tinned-tomato label?

Compare total carbohydrate, sugars and salt per 100g, and read the ingredients list. NHS food-label guidance explains these nutrition figures on pre-packed foods; use the amount going into your recipe to work out the contribution of your portion.

Does a lower sugars figure mean a better choice for carbohydrate counting?

No: compare total carbohydrate for the portion instead. ASDA Groceries lists 2.8g sugars and 3.9g carbohydrate per 100g for Mutti finely chopped tomatoes, versus 2.9g sugars and 3.6g carbohydrate for its listed Mutti whole peeled tomatoes. The sugars figures alone would not show that difference in total carbohydrate.

How should I store tomatoes after opening a tin?

Follow the instructions on the tin you open. The product instructions described for M&S organic chopped tomatoes and ASDA Just Essentials chopped tomatoes both call for leftovers to be moved to a suitable non-metallic container and refrigerated; check that pack for its stated use-by period after opening.